Critical Technical Advantages
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Wireless Operation with SmartBlue: The integrated Bluetooth interface allows for full configuration and diagnostics via the SmartBlue app. This is a critical safety benefit for instruments installed in difficult-to-reach locations or hazardous areas, as it enables remote interaction without the need for specialized cables or process interruption.
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Full Vacuum Resistance: The high-purity ceramic sensor is structurally vacuum-proof up to process temperatures of +100°C (212°F). Unlike metallic diaphragms, the ceramic membrane does not suffer from “oil-pull” or permanent deformation in high-vacuum applications like distillation or evaporation.
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Guided SIL Commissioning: To reduce systematic failures, the device software includes intuitive wizards. These guides walk the user through error-free SIL commissioning and documented proof testing, ensuring that safety instrumented systems (SIS) are maintained to the highest standards with minimal effort.
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High-Precision Ceramic Cell: The capacitive sensor offers an accuracy of up to ±0.055%. Because it is a “dry” cell (oil-free), there is zero risk of process contamination from fill-fluids, which is a major advantage in pharmaceutical and high-purity chemical sectors.
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Condition-Based Maintenance: The PMC51B tracks its own health and environmental stressors, providing the data necessary to move from reactive repairs to a more efficient, condition-based maintenance strategy. This helps optimize plant shutdowns and reduces total cost of ownership.
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Robustness in Abrasive Media: The ultra-hard Ceraphire ceramic (99.9% Al2O3) is significantly more resistant to abrasion and corrosion than 316L stainless steel or other common metallic alloys.
Technical Performance Matrix
| Feature | Details |
| Measuring Principle | Capacitive Ceramic (Oil-free) |
| Pressure Range | Up to 40 bar (600 psi) |
| Accuracy | Up to +/- 0.055% |
| Vacuum Resistance | Fully resistant up to +100°C (212°F) |
| Communication | 4-20 mA HART, Bluetooth |
| Operation | Local display or SmartBlue App |
Primary Applications
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Vacuum Distillation: Monitoring absolute pressure in columns where deep vacuum and high reliability are required.
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Abrasive Slurries: Measuring pressure in pipelines containing particulate matter that would erode metallic sensors.
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Safety Instrumented Systems (SIS): Applications requiring SIL-rated sensors with guided and documented proof testing procedures.
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Corrosive Chemical Processing: Handling aggressive acids or bases where the inert properties of high-purity ceramic are required.
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Remote or Inaccessible Points: Utilizing Bluetooth connectivity to monitor instruments located high on tanks or within restricted zones.
